กรงรักทายาทพันล้าน

Bankrupt heiress Isolde signs a three-year mistress contract with Savien Thorne, heir to the Thorn Group, just to cover her mother’s life-saving medical bills. The second the contract ends, she’s ready to walk away for good. Until she finds out she’s pregnant. His arranged fiancée learns the secret, and torments her at every turn. Worse — she’s never been anything but a double for the other woman. She moves out and cuts all ties. But he’s not letting her get away.